Heating mantles are made of each size to provide uniform heating. Bigger sizes of mantles have two or three heating circuits so that upper circuits could be switched off when smaller sizes flask is being heated or when liquid level is dropped, Hot plates (or Magnetic stirrer) are electronic devices used to uniformly heat the liquid with or without stirring it. The principle of working is same as in the one used in a kitchen, its usage is in chemistry and biology lab.
Heating mantles are made of each size to provide uniform heating. Bigger sizes of mantles have two or three heating circuits so that upper circuits could be switched off when smaller sizes flask is being heated or when liquid level is dropped, Hot plates (or Magnetic stirrer) are electronic devices used to uniformly heat the liquid with or without stirring it. The principle of working is same as in the one used in a kitchen, its usage is in chemistry and biology lab.